Patent US3974140A successfully refreshed from Google Patents.
US3974140A
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Ureidoacetamido-penicillins
Assignee: Bayer AG
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Filing: 1975-08-13
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Granted: 1976-08-10
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Expires: 1995-08-13
Abstract
Abstract 6-( alpha -3-Acyl-ureidoacetamido)-penicillanic acids and pharmaceutically acceptable non-toxic salts thereof in which the hydrogen atom of the nitrogen atom present in the 3-position is substituted, are effective against Gram-positive and Gram-negative infections, particularly Klebsiella aerobacter infections.
Inventors
- 👤 Hans-Bodo Konig
- 👤 Wilfried Schrock
- 👤 Hans Disselnkotter
- 👤 Karl Georg Metzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:23
CPC Classifications
C; C07; C07D; C07D499/00; C07D499/21; C07D499/44; C07D499/48; C07D499/58; C07D499/64; A; A61; A61K; A61K31/00; A61K31/33; A61K31/395; A61K31/41; A61K31/425; A61K31/429; A61K31/43; C07C; C07C275/00; C07C275/46; C07C275/58; C07C275/60; C07D499/68
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
84 words
A compound selected from the group consisting of a penicillin of the formula: ##EQU24## and the pharmaceutically acceptable nontoxic salts thereof wherein the carbon atom designated by * constitutes a center of chirality, ##EQU25## in which m is 3, 4 or 5, and B is ##SPC2## wherein R 4 , r 5 and R 6 are the same or different, and are each hydrogen, halo, lower alkyl, lower alkoxy, lower alkylthio, lower alkylthionyl, lower alkylsulphonyl, nitro, di(lower alkyl)amino, lower alkanoylamino, hydroxy, or lower alkanoyloxy.
Claim 2
Dependent Claim
84 words
A compound selected from the group consisting of a penicillin of the formula: ##EQU24## and the pharmaceutically acceptable nontoxic salts thereof wherein the carbon atom designated by * constitutes a center of chirality, ##EQU25## in which m is 3, 4 or 5, and B is ##SPC2## wherein R 4 , r 5 and R 6 are the same or different, and are each hydrogen, halo, lower alkyl, lower alkoxy, lower alkylthio, lower alkylthionyl, lower alkylsulphonyl, nitro, di(lower alkyl)amino, lower alkanoylamino, hydroxy, or lower alkanoyloxy.
Claim 3
Dependent Claim
15 words
A compound according to claim 1 wherein (lower alkyl) is methyl and B is phenyl.
Claim 4
Dependent Claim
10 words
A compound according to claim 2 wherein m is 3.
Claim 5
Dependent Claim
10 words
A compound according to claim 2 wherein m is 4.
Claim 6
Dependent Claim
10 words
A compound according to claim 2 wherein m is 5.
Claim 7
Dependent Claim
14 words
The compound according to claim 1 which is D-α-(3-methyl-1,3-diazacyclohexan-2-on-1-ylcarbonylamino)benzylpenicillin or the sodium salt thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |